The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 08, 1999
Filed:
Aug. 21, 1997
Applicant:
Inventor:
Michio Naka, Kyoto, JP;
Assignee:
Kyoto Daiichi Kagaku Co., Ltd., Kyoto-fu, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
257 81 ; 257 82 ; 257 98 ; 257 99 ; 257100 ;
Abstract
An optical analyzer includes a light emitting diode (LED). The LED has a body pervious to light and a PN junction semiconductor. The body has a surface portion where a primary light emitted from semiconductor is divided into a first light and a second light. The first light is reflected at a sample and then received by a first detector, while the second light is detected by a second detector. An optical property of the sample is determined by the use of outputs of the first and second detectors.